Java实现多线程的例子
package thread_test;

/**
* 测试Runnable类实现的多线程程序
*
* @author ciding
* @createTime Dec 7, 2011 9:38:52 AM
*
*/
public class TestRunnable {
public static void main(String[] args) {
StrRunnable sr1 = new StrRunnable("chenfengbin");
StrRunnable sr2 = new StrRunnable("cidng");

Thread t1 = new Thread(sr1);
Thread t2 = new Thread(sr2);

t1.start();
t2.start();

StrThread st1 = new StrThread("chenfengbin");
StrThread st2 = new StrThread("cidng");

Thread t3 = new Thread(st1);
Thread t4 = new Thread(st2);

t3.start();
t4.start();
}
}

/**
* 通过实现接口的多线程
*
* @author ciding
* @createTime Dec 8, 2011 10:20:28 PM
*
*/
class StrRunnable implements Runnable {
private String name;

public StrRunnable(String name) {
this.name = name;
}

public void run() {
for (int i = 0; i < 3; i++) {
for(long j=0;j<100000000;j++); //用来模拟一个非常耗时的操作，方便显示多线程效果。
System.out.println("Runnable下的" + name + ": " + i);
}
}
}

/**
* 通过继承类的多线程
*
* @author ciding
* @createTime Dec 8, 2011 10:20:50 PM
*
*/
class StrThread extends Thread{
private String name;

public StrThread(String name){
this.name = name;
}

public void run() {
for (int i = 0; i < 3; i++) {
for(long j=0;j<100000000;j++); //用来模拟一个非常耗时的操作，方便显示多线程效果。
System.out.println("Thread下的" + name + ": " + i);
}
}
}